Abstract: Apparatus and method for obtaining computed tomography are disclosed. The computed tomography apparatus includes: an X-ray sensor and an X-ray generator disposed on both sides of a subject and facing each other; a first driving unit configured to move at least one of the X-ray sensor and the X-ray generator reciprocally in an angle range; and a second driving unit moving configured to move at least one of the X-ray sensor and the X-ray generator in a vertical direction of the object, simultaneously or alternately with the first driving unit.

Abstract: A sensor integrated protection device is disclosed. This device includes a sensor for detecting radiations; and a radiation shielding pad to which the sensor is coupled. A data communicating device is placed within radiation shielding pad and electrically coupled to the sensor. This device is suitable for easy wear with the pad shape and can be used for protecting different parts of the body with the various type of the pad holders. In the sensor integrated protection device, the data communicating unit is not built in the sensor but is configured to the sensor outside of the senor to reduce the size of the sensor and to improve the convenience of using and keeping the sensor.

Abstract: A refrigerator including a cooling chamber in a main body, includes: a rack assembly installed inside the cooling chamber; and a rack assembly drawing unit for drawing/putting the rack assembly out of/into the cooling chamber. Accordingly, food containers put on a rack of a rack assembly can be easily and conveniently taken out or checked regardless their locations by constructing the rack assembly to be selectively drawn out of a cooling chamber. Also, by attaching a vibration preventing rubber material to an end of the rack assembly, the food container put on the rack is prevented from being dropped, and the vibration noise can be effectively prevented.

Abstract: A refrigerator including a cooling chamber in a main body, includes: a rack assembly installed inside the cooling chamber; and a rack assembly drawing unit for drawing/putting the rack assembly out of/into the cooling chamber. Accordingly, food containers put on a rack of a rack assembly can be easily and conveniently taken out or checked regardless their locations by constructing the rack assembly to be selectively drawn out of a cooling chamber. Also, by attaching a vibration preventing rubber material to an end of the rack assembly, the food container put on the rack is prevented from being dropped, and the vibration noise can be effectively prevented.